Title | Bacteriophages Significantly Reduce Mortality of Larval Pacific Oysters Crassostrea gigas from Infection by the Pathogenic Bacterium Vibrio coralliilyticus RE98 |
Publication Type | Thesis |
Year of Publication | 2018 |
Authors | Madison, David B. |
Secondary Title | Dept. of Fisheries and Wildlife, Fisheries Science |
Volume | M.S. |
Pagination | 121 p. |
University | Oregon State university |
City | Corvallis, Or. |
Call Number | OSU Libraries: Digital Open Access |
Keywords | aquaculture, Bacteriophage, Biocontrol, bivalves, larvae, mollusks, Pacific oyster = Crassostrea gigas, Vibrio = Vibrio coralliilyticus |
Notes | This Master’s thesis offers an interesting approach to a problem that has long plagued shellfish hatcheries: infection by Vibrio coralliilyticus, a prolific and robust bacterium. This Vibrio can kill almost all oyster larvae in a hatchery under the right conditions. In order to prevent those conditions, bacteriophages were introduced to infect the Vibrio bacteria. “Larvae exposed to phage early in life had a higher metamorphosis rate than the larvae only controls even if they had been exposed to lethal concentration of Vcor [Vibrio coralliilyticus]. This study demonstrates that phages can be very effective at reducing larval mortality and any negative effects on growth or metamorphosis from exposure to Vcor. Phages have the potential to benefit the shellfish industry by reducing the frequency and severity of larval mortality events in hatcheries” (from the Abstract). The major professor was Christopher J. Langdon. |
URL | https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/jm214v24k |